JP7700021B2 - Garment for lower legs and method for manufacturing same - Google Patents

Description

Application of Article 30, paragraph 2 of the Patent Act Application of Article 30, paragraph 2 of the Patent Act, contents published on the website (https://www.pip-wellness.jp) from July 12, 2021 to October 31, 2021 (application of Article 30, paragraph 2 of the Patent Act is acknowledged for all two cases submitted in the Certificate of Exception to Loss of Novelty dated October 28, 2021.)

The present invention relates to a garment for the lower legs and a method for manufacturing the garment for the lower legs.

For example, Patent Document 1 discloses a garment for the lower limbs with a so-called stepped compression design, designed so that the pressure applied from the ankle to the thigh decreases stepwise when worn. The garment for the lower limbs in Patent Document 1 uses a highly elastic fabric mainly composed of polyurethane, etc., and is worn in a stretched state on the lower limbs to apply pressure to the human body. This garment for the lower limbs is manufactured as a so-called cut-and-sew garment, in which cut pieces of fabric are sewn together. When the garment for the lower limbs is manufactured as a cut-and-sew garment, the fabric can be obtained at a lower cost than when circular knitted fabric is used, and the garment for the lower limbs can be provided at a low price. In the garment for the lower limbs in Patent Document 1, the cut pieces of fabric are sewn together using a flat seam. When the fabric is sewn together using a flat seam, the garment for the lower limbs can be worn on the lower limbs with a good fit.

International Publication No. 2010/082677

In recent years, there has been a demand for garments for the lower limbs with graduated compression designs that are casual in appearance and can be worn casually not only as loungewear or underwear, but also as outerwear. The garment for the lower limbs in Patent Document 1 uses a fabric whose main component is polyurethane, so it gives the impression of being, for example, underwear like tights, and not outerwear.

To improve the casual look, it is possible to use a fabric mainly composed of cotton, such as denim. However, because cotton-based fabrics are difficult to stretch, when lower limb clothing is made from them, the compression value is likely to be low. Furthermore, when attempting to sew cotton-based fabrics using a flat seam to provide a comfortable fit, it can be difficult to set the overlapping fabrics to be sewn on the arm of the flat seam sewing machine, because the fabric is difficult to stretch. Therefore, it is difficult to manufacture lower limb clothing with a stepped compression design as a cut-and-sew garment using sewing with a flat seam.

The present invention has been made in consideration of the above problems, and aims to provide a garment for the lower legs and a method for manufacturing the garment that can easily produce a cut-and-sew garment with a graduated compression design, even if the fabric is primarily made of cotton.

A garment for lower limbs according to one embodiment of the present invention is designed to be worn on the lower limbs of a human body so as to cover the limbs from the ankles to the thighs, and to apply a stepwise decrease in pressure from the ankles to the thighs when worn on the limbs. The garment for lower limbs includes a front body covering the front of the limbs and a rear body covering the rear of the limbs, the front body and the rear body being made of a fabric mainly composed of cotton, and the front body and the rear body being sewn together by overlock stitching along the axis at a position corresponding to one of the inner and outer sides of the limbs, and sewn together by flat seaming along the axis at a position corresponding to the other of the inner and outer sides of the limbs.

The front and rear body sections may include shorts that cover the crotch of the human body, and the front and rear body sections may be sewn together by overlock sewing along the axial direction at a position corresponding to the inside of the lower leg, and sewn together by flat seaming along the axial direction at a position corresponding to the outside of the lower leg.

The fabric may be knitted by inlay knitting.

The fabric may be composed of 50% or more and 70% or less cotton, 20% or more and 40% or less polyester, and 5% or more and 25% or less polyurethane.

A method for manufacturing lower leg clothing according to one embodiment of the present invention includes the steps of sewing the front and rear body pieces together by a flat seam machine at a position corresponding to one of the inside and outside of the lower leg, and sewing the front and rear body pieces together by overlock at a position corresponding to the other of the inside and outside of the lower leg, and the step of sewing together by overlock is performed after the step of sewing together by the flat seam machine.

According to the lower leg garment and the manufacturing method for lower leg garment according to one embodiment of the present invention, a cut-and-sew garment with a graduated compression design can be easily manufactured even with fabrics that are primarily made of cotton.

1 is a schematic diagram showing a lower leg garment according to an embodiment of the present invention, as viewed from the front. 1 is a schematic diagram showing a lower leg garment according to an embodiment of the present invention, viewed from the rear. FIG. 4 is a schematic diagram showing a step of sewing a front body piece and a rear body piece together using a flat seam in a manufacturing method for a lower leg garment according to an embodiment of the present invention. FIG. 4 is a schematic diagram showing a step of sewing a front body piece and a rear body piece together by overlock sewing in a manufacturing method for a lower leg garment according to one embodiment of the present invention.

Below, a description will be given of a garment for lower legs according to one embodiment of the present invention with reference to Figures 1 and 2. However, the following embodiment is merely an example, and the garment for lower legs of the present invention is not limited to the following example.

In this specification, unless otherwise specified, "A-shape" and similar expressions do not refer only to a complete A-shape, but also to a shape that is visually reminiscent of an A-shape (approximately A-shape). In this specification, unless otherwise specified, "axial direction" and similar expressions refer to the height direction of the human body, and "radial direction" and similar expressions refer to the direction around the human body with the height direction as the axis. In this specification, unless otherwise specified, "upper" and similar expressions refer to the side of the human body from the toes to the head, and "lower" and similar expressions refer to the side of the human body from the head to the toes, which is the opposite side of "upper". In this specification, unless otherwise specified, "front" and similar expressions refer to the side of the human body toward which the belly faces, and "rear" and similar expressions refer to the side of the human body toward which the waist faces, which is the opposite side of "front". In this specification, unless otherwise specified, "right" and similar expressions refer to the left side when the human body is viewed from the front, and "left" and similar expressions refer to the opposite side of "right" and the right side when the human body is viewed from the front. In this specification, unless otherwise specified, "inside" and similar expressions refer to the side where the left and right legs face each other, and "outside" and similar expressions refer to the opposite side of "inside" and the side where the left and right legs do not face each other.

1 and 2, the garment for lower legs 1 according to this embodiment is designed to be worn on the lower legs of the human body B so as to cover the ankles to the thighs of the human body B, and to apply a stepwise decrease in pressure from the ankles to the thighs when worn on the lower legs. The shape of the garment for lower legs 1 is not particularly limited as long as it is designed to apply a stepwise decrease in pressure. In this embodiment, the garment for lower legs 1 includes leg sections 20L, 20R, 30L, and 30R that cover substantially the entire legs of the human body B. In addition to the leg sections 20L, 20R, 30L, and 30R, the garment for lower legs 1 may further include shorts sections 24L, 24R, 34L, and 34R that are formed continuously with the leg sections 20L, 20R, 30L, and 30R and cover the crotch of the human body B. However, the garment for the lower legs 1 does not have to include the shorts parts 24L, 24R, 34L, and 34R, and may, for example, only include a leg part for one leg. The garment for the lower legs 1 can be embodied as, for example, stockings, pantyhose, tights, spats, leggings, trencas, etc.

The leg parts 20L, 20R, 30L, and 30R are not particularly limited, but in this embodiment, as shown in Fig. 1 and Fig. 2, have a cylindrical shape so as to cover almost the entire crotch from the ankle to the thigh of the human body B in the vertical direction. Specifically, the leg parts 20L, 20R, 30L, and 30R include ankle parts 21L, 21R, 31L, and 31R that cover almost the entire ankle of the human body B, calf parts 22L, 22R, 32L, and 32R that cover almost the entire calf of the human body B, and thigh parts 23L, 23R, 33L, and 33R that cover almost the entire thigh of the human body B. However, the leg parts 20L, 20R, 30L, and 30R may have a cylindrical shape with a bottom at one end so as to cover, for example, the toes, depending on the shape of the lower leg garment 1 to be embodied.

In this embodiment, the shorts 24L, 24R, 34L, 34R cover the lower abdomen, waist, and buttocks of the human body B as shown in Fig. 1 and Fig. 2. Specifically, the shorts 24L, 24R, 34L, 34R have one opening positioned at the waist of the human body B at the top, and two openings communicating with the leg parts 20L, 20R, 30L, 30R at the bottom. The shorts 24L, 24R, 34L, 34R may have a waist part 40 at the top that tightens the waist of the human body B. In this case, the waist part 40 tightens the waist of the human body B, thereby preventing the lower limb garment 1 from slipping down. For example, the waist part 40 is formed by sewing a ring-shaped rubber to the upper end of the main body of the shorts 24L, 24R, 34L, 34R. However, the waist portion 40 may be formed by folding the fabric forming the shorts portions 24L, 24R, 34L, and 34R in the vertical direction, sewing the ends together, and inserting a fastening string into the internal space formed by the folding.

As described above, the lower leg garment 1 is designed so that the pressure applied to the garment decreases stepwise from the ankle to the thigh when the garment is worn on the lower leg. By doing so, when the garment 1 is worn on the lower leg, the garment 1 compresses the muscles and pushes blood upward, thereby reducing fatigue and swelling in the lower leg. In this embodiment, the leg portions 20L, 20R, 30L, and 30R of the garment 1 are designed so that the pressure applied to the garment decreases stepwise in the order of the ankle portions 21L, 21R, 31L, and 31R, the calf portions 22L, 22R, 32L, and 32R, and the thigh portions 23L, 23R, 33L, and 33R. The pressure design of the garment 1 for the lower leg may be changed, for example, according to the average body type corresponding to the age and sex of the wearer to whom the garment 1 for the lower leg is to be worn. The pressure applied by the garment for lower legs 1 can be adjusted by changing the length in the circumferential direction D2 of the ankle regions 21L, 21R, 31L, 31R, the calf regions 22L, 22R, 32L, 32R, and the thigh regions 23L, 23R, 33L, 33R at each position in the axial direction D1.

The pressure applied when the garment for lower legs 1 is worn on the lower legs is not particularly limited, so long as the pressure decreases stepwise from the ankle to the thigh. For example, the garment for lower legs 1 can be designed so that, when worn on the lower legs of a human body B, the pressure applied to the ankles (pressure applied by ankle portions 21L, 21R, 31L, 31R) is preferably 13 to 30 hPa, the pressure applied to the calves (pressure applied by calf portions 22L, 22R, 32L, 32R) is 8 to 25 hPa, and the pressure applied to the thighs (pressure applied by thigh portions 23L, 23R, 33L, 33R) is 4 to 21 hPa, and more preferably, the pressure applied to the ankles is 20 to 25 hPa, the pressure applied to the calves is 15 to 20 hPa, and the pressure applied to the thighs is 10 to 15 hPa.

As shown in Figs. 1 and 2, the garment for lower legs 1 comprises a front body 2 that covers the front surface of the lower leg and a back body 3 that covers the back surface of the lower leg. In this embodiment, the front body 2 comprises a left front body 2L that covers the left side of the front surface of the lower leg and a right front body 2R that covers the right side of the front surface of the lower leg. Similarly, the back body 3 comprises a left back body 3L that covers the left side of the back surface of the lower leg and a right back body 3R that covers the right side of the back surface of the lower leg. More specifically, the front body 2 comprises a left front body 2L in which the left front leg part 20L and the left front shorts part 24L are integrally formed without being sewn, and a right front body 2R in which the right front leg part 20R and the right front shorts part 24R are integrally formed without being sewn. Similarly, the rear body 3 includes a left rear body 3L in which the left rear leg section 30L and the left rear shorts section 34L are integrally formed without being sewn, and a right rear body 3R in which the right rear leg section 30R and the right rear shorts section 34R are integrally formed without being sewn. However, the configurations of the front body 2 and the rear body 3 may be appropriately changed in accordance with the shape of the garment for lower legs 1 to be realized, taking into consideration the ease and cost of manufacturing the garment for lower legs 1. For example, the front body 2 may be formed in such a way that the left front body 2L and the right front body 2R are integrally formed without being sewn. Similarly, the rear body 3 may be formed in such a way that the left rear body 3L and the right rear body 3R are integrally formed without being sewn. The front body 2 may be formed by sewing together cut ankle sections 21L, 21R, calf sections 22L, 22R, thigh sections 23L, 23R, and shorts sections 24L, 24R. Similarly, the back body 3 may be formed by sewing together cut ankle sections 31L, 31R, calf sections 32L, 32R, thigh sections 33L, 33R, and shorts sections 34L, 34R.

In this way, the lower leg garment 1 is formed as a cut-and-sew item. Specifically, as shown in FIG. 1 , the lower leg garment 1 has a left outer seamed portion SL1 where the outer ends (ends in the circumferential direction D2) of the left front body 2L and the left back body 3L are sewn together along the axial direction D1, a left inner seamed portion SL2 where the ends (ends in the circumferential direction D2) of the inner lower left front body 2L and the left back body 3L (parts corresponding to the leg portions 20L, 20R, 30L, 30R) are sewn together along the axial direction D1, a right outer seamed portion SR1 where the outer ends (ends in the circumferential direction D2) of the right front body 2R and the right back body 3R are sewn together along the axial direction D1, and a right inner seamed portion SR2 where the ends (ends in the circumferential direction D2) of the inner lower right front body 2R and the right back body 3R (parts corresponding to the leg portions 20L, 20R, 30L, 30R) are sewn together along the axial direction D1. More specifically, the lower leg garment 1 further has a front seam SC1 formed by sewing together the ends (ends in the circumferential direction D2) of the upper inner sides of the left front body 2L and the right front body 2R (parts corresponding to the shorts parts 24L, 24R, 34L, 34R) along the axial direction D1 as shown in FIG. 1 , and a back seam SC2 formed by sewing together the ends (ends in the circumferential direction D2) of the upper inner sides of the left back body 3L and the right back body 3R (parts corresponding to the shorts parts 24L, 24R, 34L, 34R) along the axial direction D1 as shown in FIG. 2 . In this embodiment, as shown in Figures 1 and 2, the left front body 2L, the right front body 2R, the left back body 3L, and the right back body 3R are sewn together at the left outer seam SL1, the left inner seam SL2, the right outer seam SR1, the right inner seam SR2, the front seam SC1, and the rear seam SC2, so that the garment for the lower legs 1 is a cut-and-sew garment. Details of the sewing at the left outer seam SL1, the left inner seam SL2, the right outer seam SR1, the right inner seam SR2, and the rear seam SC2 will be described later.

The front body 2 and the back body 3 are made of a fabric mainly composed of cotton. This gives the lower leg garment 1 a casual impression as a whole, so that it can be used casually not only as loungewear or underwear, but also as outerwear. In this specification, the "main component of the fabric" means a component that occupies 50% or more of the fabric, and "%" means weight %. As shown in Figures 1 and 2, when the lower leg garment 1 is embodied as leggings, the lower leg garment 1 can be made to look like skinny pants. Also, as shown in Figures 1 and 2, a more casual impression can be given by providing a pocket P, sewing buttons (not shown), or decorating the outer fabric of the front body 2 or the back body 3 with a logo mark (not shown). Furthermore, if the fabric of the front body 2 and the back body 3 is dyed black or indigo, the lower leg garment 1 gives the impression of being made of denim fabric as a whole, so that the lower leg garment 1 can be used more casually.

The fabric of the front body 2 and the back body 3 is not particularly limited as long as it is mainly composed of cotton. For example, the fabric of the front body 2 and the back body 3 is preferably composed of 50% or more and 70% or less of cotton, 20% or more and 40% or less of polyester, and 5% or more and 25% or less of polyurethane, and more preferably, 50% or more and 60% or less of cotton, 25% or more and 35% or less of polyester, and 10% or more and 20% or less of polyurethane. By including polyester in the fabric in the above ratio, the fabric is given toughness and abrasion resistance without impairing the texture of the cotton, thereby improving the strength of the lower limb garment 1. In addition, by including polyurethane in the fabric in the above ratio, the fabric is given elasticity to the extent that it does not impair the pressure, thereby improving the ease of putting on and taking off the lower limb garment 1. Furthermore, the elasticity of the polyurethane reduces the feeling of tightness around the legs, making the pants more comfortable to wear and providing a better fit than regular denim pants.

In this embodiment, the fabric of the front body 2 and the back body 3 is composed of multiple components as described above by knitting using multiple types of yarns (single spun yarns or single filament yarns) spun from fibers of a single component. More specifically, for example, if the fabric of the front body 2 and the back body 3 is composed of 55% cotton, 30% polyester, and 15% polyurethane, the cotton yarn, polyester yarn, and polyurethane yarn are knitted in a ratio of 55:30:15. In this specification, the term "yarn" refers to a raw material used when knitting the fabric, and is a concept that includes not only single yarns but also multi-ply yarns (for example, two-ply yarns) in which multiple single yarns are twisted together. However, the fabric of the front body 2 and the back body 3 may be composed of multiple components as described above by knitting using only one type of yarn (blended yarn or mixed fiber yarn) spun from fibers of multiple components. More specifically, for example, if the fabric of the front body 2 and the back body 3 is made of 55% cotton, 30% polyester, and 15% polyurethane, they may be knitted using only yarn spun from a mixture of cotton fibers, polyester fibers, and polyurethane fibers in a ratio of 55:30:15.

In this embodiment, the fabric of the front body 2 and the back body 3 is knitted by inlay knitting. By using a fabric knitted by inlay knitting, even if the fabric is knitted with a knitted fabric, it is possible to provide sufficient pressure to the lower limbs of the human body B and provide a soft wearing feeling to the wearer of the lower limb garment 1. More specifically, the fabric of the front body 2 and the back body 3 is knitted by inlay knitting, in which polyurethane yarn is inserted as an inlay yarn in the axial direction D1 or circumferential direction D2 into a knitted fabric knitted so that cotton appears as the main component of the outer fabric and polyester appears as the main component of the lining. In this case, the proportion of cotton appearing from the outer fabric is higher than the overall component ratio of the lower limb garment 1, so that the lower limb garment 1 gives a more casual impression as a whole and can be used more casually. In addition, the balance between the pressure of the lower limb garment 1 and the stretchability of the lower limb garment 1 is appropriate, and the lower limb garment 1 provides a good wearing feeling. However, the fabric of the front body 2 and back body 3 is not particularly limited as long as it is a fabric whose main component is cotton, and it may be a woven fabric such as denim fabric woven with a twill weave, or a nonwoven fabric such as cotton felt.

As shown in Figs. 1 and 2, the front body 2 and the back body 3 are sewn by overlocking along the axial direction D1 at a position corresponding to one of the inside and outside of the lower leg, and sewn by flat seaming along the axial direction D1 at a position corresponding to the other of the inside and outside of the lower leg. By doing so, even if the front body 2 and the back body 3 are made of a fabric mainly composed of cotton and have low elasticity, a cut-and-sew garment with a stepped compression design can be easily manufactured as described below. Since the stitching by the flat seaming is approximately flat against the surface of the fabric, there is little discomfort when the stitching touches the human body B, so the lower leg garment 1 feels good when worn. In addition, since the stitching by the flat seaming is easily in close contact with the human body B, the pressure applied by the lower leg garment 1 to the human body B is stable even when the human body B slides against the lining of the lower leg garment 1 due to the wearer's movements. Furthermore, by using a flat seam to sew only one of the inside and outside of the garment for the lower legs 1, the desired pressure can be sufficiently obtained.

In this specification, "overlock" means sewing with an overlock stitch using one or two needles, and more specifically, sewing with an overlock stitch using two needles. In this specification, "flat seam" means sewing with a flat stitch using four or more needles, and more specifically, sewing with a flat stitch using four to six needles, and even more specifically, sewing with a flat stitch using four needles.

1 and 2, in this embodiment, the front body 2 and the back body 3 are sewn by overlock at positions corresponding to the inside of the lower leg (left inner seam SL2 and right inner seam SR2) along the axial direction D1, and are sewn by a flat seam at positions corresponding to the outside of the lower leg (left outer seam SL1 and right outer seam SR1) along the axial direction D1. In this case, the flat seam seam is provided at a position corresponding to the outside of the lower leg, which has a large degree of sliding against the lining of the lower leg garment 1 when the wearer moves, so that the pressure on the human body B during the wearer's movement is more stable. In addition, the shorts parts 24L, 24R, 34L, and 34R are sewn by the flat seam beyond the position corresponding to the crotch to the position corresponding to the rise, so that the pressure on the human body B is more stable. However, the front body 2 and the back body 3 may be sewn together by overlocking along the axial direction D1 at positions corresponding to the outside of the lower leg (left outer seam SL1 and right outer seam SR1), and sewn together by flat seaming along the axial direction D1 at positions corresponding to the inside of the lower leg (left inner seam SL2 and right inner seam SR2).

In addition, in this embodiment, as shown in Figures 1 and 2, the left front body 2L and the right front body 2R are sewn together by a flat seam along the axial direction D1 at a position (front seam SC1) corresponding to the front center of the shorts 24L and 24R. In this embodiment, the left rear body 3L and the right rear body 3R are sewn together by a flat seam at a position (rear seam SC2) corresponding to the rear center of the shorts 34L and 34R. In this case, sewing the shorts 24L, 24R, 34L, and 34R by a flat seam further improves the wearing comfort of the lower leg garment 1. Pressure on the crotch of the human body B is stabilized. However, the left front body 2L and the right front body 2R may be sewn together at positions corresponding to the front and back central portions of the shorts 24L, 24R, 34L, and 34R (front seam SC1 and back seam SC2) using a suitable stitch other than a flat seam, such as an overlock.

Next, a method for manufacturing a garment for lower legs according to one embodiment of the present invention will be described with reference to Figures 3 and 4. However, the following embodiment is merely an example, and the method for manufacturing a garment for lower legs according to the present invention is not limited to the following example.

The manufacturing method of the lower leg garment 1 according to this embodiment includes a step of sewing the front body 2 and the back body 3 together by a flat seam machine at a position corresponding to one of the inside and outside of the lower leg (see FIG. 3), and a step of sewing the front body 2 and the back body 3 together by overlock at a position corresponding to the other of the inside and outside of the lower leg (see FIG. 4). In the manufacturing method of the lower leg garment according to this embodiment, the step of sewing together by a flat seam machine is followed by a step of sewing together by overlock.

The step of sewing the front body 2 and the back body 3 together with a flat seam can be performed using a known flat seam sewing machine. Specifically, as shown in FIG. 3, the front body (left front body) 2L and the back body (left back body) 3L are set on the arm M10 of the flat seam sewing machine M1 in a state where they are overlapped at the left outer seam SL1, and the front body (left front body) 2L and the back body (left back body) 3L are sewn in the axial direction D1 at the overlapping left outer seam SL1. Similarly, although not shown in particular, the front body (right front body) 2R and the back body (right back body) 3R are set on the arm M10 of the flat seam sewing machine M1 in a state where they are overlapped at the right outer seam SR1, and the front body (right front body) 2R and the back body (right back body) 3R are sewn in the axial direction D1 at the overlapping right outer seam SR1.

In this way, first, one end of the outer end and one end of the inner end of the front body 2 and the back body 3 (in this embodiment, the left outer seam SL1 and the right outer seam SR1) are sewn together by the flat seam. In this way, the front body 2 and the back body 3 can be set with one end overlapping on the arm M10 of the flat seam sewing machine M1 without any stitching. On the other hand, if one end of the front body 2 and the back body 3 is sewn together and the other end (in this embodiment, the left inner seam SL2 and the right inner seam SR2) is to be sewn together by the flat seam, it is necessary to set the other end of the front body 2 and the back body 3 overlapping on the arm M10 of the flat seam sewing machine M1 so that the front body 2 and the back body 3 are cylindrical as a whole. In the garment for lower limbs 1 with graduated compression design as in this embodiment, the diameter of the front body 2 and the back body 3 overlapped in a cylindrical shape at the ankle parts 21L, 21R, 31L, 31R (see Figures 1 and 2), where the diameter is the smallest, may be smaller than the diameter of the arm M10 of the flat seam sewing machine M1. In this case, if a fabric mainly composed of cotton, which is difficult to stretch, is used for the front body 2 and the back body 3, the front body 2 and the back body 3 cannot be properly set on the arm M10 of the flat seam sewing machine M1 in the cylindrical overlapped state, and it becomes difficult to sew the other end of the front body 2 and the back body 3 by the flat seam.

The step of sewing the front body 2 and the back body 3 together by overlocking can be performed using a known overlock sewing machine. Specifically, after the step of sewing together by a flat seam, as shown in Fig. 4, the outer fabrics of the front body (left front body) 2L and the back body (left back body) 3L are set on the table M20 of the overlock sewing machine M2 in a state where they are overlapped at the left inner seam SL2 (in other words, the linings of the front body (left front body) 2L and the back body (left back body) 3L are facing outward), and the front body (left front body) 2L and the back body (left back body) 3L are sewn in the axial direction D1 at the overlapping left inner seam SL2. Similarly, although not shown, the outer fabrics of the front body (right front body) 2R and the back body (right back body) 3R are placed on the table M20 of the overlock sewing machine M2 in an overlapping state at the right inside seam SR2 (in other words, the linings of the front body (right front body) 2R and the back body (right back body) 3R are facing out), and the front body (right front body) 2R and the back body (right back body) 3R are sewn in the axial direction D1 at the overlapping right inside seam SR2.

In this way, one of the outer ends and inner ends of the front body 2 and the back body 3 (in this embodiment, the left outer seam SL1 and the right outer seam SR1) is sewn by a flat seam, and then the other end (in this embodiment, the left inner seam SL2 and the right inner seam SR2) is sewn by overlock. When the front body 2 and the back body 3 are sewn by overlock with the fabric turned inside out and the lining facing out, unlike sewing by a flat seam, it is not necessary to overlap the other ends of the front body 2 and the back body 3 so that the front body 2 and the back body 3 are cylindrical as a whole. In other words, in the case of sewing by overlock, as shown in FIG. 4, it is sufficient to set the front body 2 and the back body 3 on only one side, left or right, of the feed direction of the overlock sewing machine M2 (in FIG. 4, the axial direction D1) on the table M20 of the overlock sewing machine M2. Therefore, overlapping the other ends of the front body 2 and the back body 3 is not difficult, as is the case with sewing using a flat seam. Therefore, even if the front body 2 and the back body 3 are made of a fabric mainly composed of cotton, which is difficult to stretch, overlock sewing can be easily performed. Furthermore, if the fabric is turned over again after sewing to return to the correct orientation, the overlock sewing parts (in this embodiment, the left inner sewing part SL2 and the right inner sewing part SR2) become the lining and are not exposed as the outer fabric, improving the appearance of the lower leg garment 1.

Then, although not shown, in this embodiment, the left front body 2L and the right front body 2R are sewn together by a flat seam at a position (front seam SC1) corresponding to the center of the shorts 24L and 24R along the axial direction D1 (see the sewn-up views of Figs. 1 and 2). Similarly, although not shown, the left back body 3L and the right back body 3R are sewn together by a flat seam at a position (rear seam SC2) corresponding to the center of the shorts 34L and 34R along the axial direction D1 (see the sewn-up views of Figs. 1 and 2). Note that the shorts 24L, 24R, 34L, and 34R are considerably wider than the leg portions 20L, 20R, 30L, and 30R, so that the shorts 24L, 24R, 34L, and 34R can be easily set on the arm M10 of the flat seam sewing machine M1 even when overlapped in a cylindrical shape. After that, although not shown, in this embodiment, for example, a circular rubber band is sewn to the upper end of the main body of the shorts parts 24L, 24R, 34L, and 34R to form the waist part 40 (see the diagrams after sewing in Figures 1 and 2). Through the above steps, the garment for the lower legs 1 shown in Figures 1 and 2 is completed.

According to the lower leg garment 1 of this embodiment configured as described above, the front body 2 and the back body 3 are sewn together by overlock along the axial direction D1 at a position corresponding to one of the inside and outside of the lower leg, and sewn together by flat seaming along the axial direction D1 at a position corresponding to the other of the inside and outside of the lower leg. This makes it easy to manufacture a cut-and-sew garment with a graduated compression design, even if the fabric is mainly made of cotton.

In this embodiment, the front body 2 and the back body 3 include shorts 24L, 24R, 34L, and 34R that cover the crotch, and the front body 2 and the back body 3 are sewn by overlock along the axial direction D1 at a position corresponding to the inside of the lower leg, and sewn by a flat seamer along the axial direction D1 at a position corresponding to the outside of the lower leg. In this case, since the overlock seams are provided at a position corresponding to the outside of the lower leg that slides more against the lining of the lower leg garment 1 when the wearer moves, the pressure on the human body B during the wearer's movement is more stable. Also, the shorts 24L, 24R, 34L, and 34R are sewn by a flat seamer beyond the position corresponding to the crotch to the position corresponding to the crotch, so the pressure on the human body B is more stable.

In this embodiment, the fabric of the front body 2 and the back body 3 is knitted by inlay knitting. In this case, even if the fabric is knitted, it is possible to provide sufficient pressure to the lower limbs of the human body B and provide a soft wearing feel like that of knitted fabric.

In this embodiment, the fabric of the front body 2 and the back body 3 is composed of 50% or more and 70% or less cotton, 20% or more and 40% or less polyester, and 5% or more and 25% or less polyurethane. In this case, the polyester gives the fabric toughness and abrasion resistance without compromising the texture of the cotton, improving the strength of the lower leg garment 1. Furthermore, the polyurethane gives the fabric stretchability to the extent that it does not impair the compression, improving the ease of putting on and taking off the lower leg garment 1.

The garment for the lower legs 1 according to this embodiment is manufactured by performing a step of sewing with a flat seam, followed by a step of sewing with an overlock. In this case, even if the fabric is mainly composed of cotton, a cut-and-sew garment with a graduated compression design can be easily manufactured.

REFERENCE SIGNS LIST 1 garment for lower limbs 2 front body 20L, 20R, 30L, 30R leg portion 21L, 21R, 31L, 31R ankle portion 22L, 22R, 32L, 32R calf portion 23R, 23L, 33R, 33L thigh portion 24L, 24R, 34L, 34R shorts portion 2L left front body portion 2R right front body portion 3 back body portion 40 waist portion B human body D1 axial direction D2 circumferential direction M1 flat seam sewing machine M10 arm M2 overlock sewing machine M20 table P pocket SC1 front seam portion SC2 back seam portion SL1 left outer seam portion SL2 left inner seam portion SR1 right outer seam portion SR2 right inner seam portion

Claims (4)

A method for manufacturing a garment for lower legs, which is to be worn on the lower legs of a human body so as to cover the legs from the ankles to the thighs, and is designed so that the pressure applied to the garment decreases stepwise from the ankles to the thighs when the garment is worn on the lower legs,
The lower leg garment comprises:
A front body that covers the front of the lower legs,
A back body covering the back of the lower legs;
The front body and the back body are made of a fabric mainly composed of cotton,
The front body and the back body are sewn together by an overlock stitch along an axial direction at a position corresponding to one of the inner and outer sides of the lower leg, and are sewn together by a flat seam along an axial direction at a position corresponding to the other of the inner and outer sides of the lower leg,
The manufacturing method comprises:
A step of sewing the front body and the back body together by a flat seam at a position corresponding to one of the inside and outside of the lower leg;
a step of sewing the front body and the back body together by overlock stitching at a position corresponding to the other of the inside and outside of the lower leg;
Including,
The method for manufacturing a garment for the lower legs , comprising the step of sewing by the flat seam machine followed by the step of sewing by the overlock machine . The front body and the rear body include a shorts portion that covers the crotch of a human body,
2. The method for manufacturing a lower leg garment according to claim 1, wherein the front body piece and the back body piece are sewn together along the axial direction by an overlock stitch at a position corresponding to the inside of the lower leg, and are sewn together along the axial direction by a flat seam stitch at a position corresponding to the outside of the lower leg. The method for manufacturing a garment for lower legs according to claim 1 or 2, wherein the fabric is knitted by inlay knitting. The method for manufacturing lower leg clothing according to any one of claims 1 to 3, wherein the fabric is composed of 50% or more and 70% or less of cotton, 20% or more and 40% or less of polyester, and 5% or more and 25% or less of polyurethane.

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